Improvement in metallic window-frames



D. H. CARPENTER. Improvement in Met'allic Window-Frames.

Fig.1.

wnssl-zs UNITED STATEs PATEN DANIEL H. CARPENTER, OF HARTFORD,CONNECTICUT.

IMPROVEMENT IN METALLIC WINDOW-FRAMES.

Specification forming part of Letters Patent No. 131,661, datedSeptember 24; 1872.

To all whom it mag concern:

Be it known that I, DANIEL H. CARPENTER, of Hartford,in the county ofHartford and State of Connecticut, have invented a new and valuableImprovement in Window -Frame; and I do hereby declare that the followingis a full,

clear, and exact description of the construction and operation of thesame, reference being had to the annexed drawing making a part of thisspecification, and to the letters and figures of reference markedthereon.

Figure 1 of the drawing is a representation of a vertical transverse,and Fig. 2 is a horizontal, section of my invention.

This inventionhasrelation to window-frames for fire-proof buildings; andthe novelty consists in constructing the entire frame of sheet metal,and striking up in suitable dies the of separate plates, each of whichis struck up with its interior and exterior molding flanges cf. Theseplates are afterward fitted and secured together, and the frame-soarranged as to cover the coarse Work of the window opening. In strikingup this frame the ridges 9 may be produced from the plates composing thesides, top, and bottom of the frame; or these ridges may be afterwardstruck up from separate strips and secured to the frame. If the frame isintended to receive a shutter or blind, a hinge tube or barrel, B, maybe made by bending the outer flange of one of the sides of the frame tothe proper form.

The method of construction above described may be varied. Modificationswill be readily suggested to the mechanic skilled in the erection offire-proof buildings.

What I claim as my invention, and desire to secure by Letters Patent,is-

The window-frame, consisting of the sheetmetal top, bottom, and sidesstruck up to form the molding and flanges, and secured together at thecorners by riveting or otherwise, substantially as specified.

In testimony that I .claim the above I have hereunto subscribed my namein the presence of two Witnesses.

' D. H. CARPENTER.

Witnesses:

D. D. KANE, GEORGE E. UPHAM.

